/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package controller;

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import model.*;

/**
 *
 * @author allishepherd
 */
@WebServlet(name = "CreateNewPostingServlet", urlPatterns = {"/CreateNewPostingServlet"})
public class CreateNewPostingServlet extends HttpServlet {
    
    @EJB ListOfPostingsBean listOfPostings;
    @EJB ListOfSeedsBean listOfSeeds;
    @EJB PostingBean posting;
    @EJB PreviousPageBean previousPage;
    HttpSession session;

    /**
     * this method creates a new posting and stores the info in the posting linked list as well as the database
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        
        BufferedWriter outputStream = new BufferedWriter(new FileWriter("listOfPostings.txt", true));
        
        try {
            
            String seedName = request.getParameter("seed");
            String quantity = request.getParameter("quantity");
            String unit = request.getParameter("unit");
            String description = request.getParameter("description");
            String willShip = request.getParameter("ship");
            
            if(seedName != null && !seedName.equals("") && !quantity.equals("") && 
                    !unit.equals("") && !description.equals("") && !willShip.equals("")){
                
                posting = new PostingBean();
                posting.setQuantity(quantity);
                outputStream.write(quantity);
                outputStream.newLine();
                posting.setQuantUnit(unit);
                outputStream.write(unit);
                outputStream.newLine();
                posting.setDescription(description);
                outputStream.write(description);
                outputStream.newLine();
                
                outputStream.write("location");
                outputStream.newLine();
                posting.setWillShip(willShip);
                outputStream.write(willShip);
                outputStream.newLine();
                
                outputStream.write("0");
                outputStream.newLine();
                session = request.getSession(false);
                if (session != null) {
                    posting.setFarmer((FarmerBean)(session.getAttribute("user")));
                    outputStream.write(posting.getFarmer().getUserID());
                    outputStream.newLine();
                    for (SeedBean seed : listOfSeeds) {
                        if (posting.getFarmer().equals(seed.getFarmer())) {
                            if (seedName.equals(seed.getCommonName())) {
                                posting.setSeed(seed);
                                outputStream.write(posting.getSeed().getSciName());
                                outputStream.newLine();
                            }
                        }
                    }
                    listOfPostings.add(posting);
                    previousPage.setNext("FarmerHomeServlet");
                    response.sendRedirect(previousPage.getNext());
                    outputStream.close();
                }
                else {
                    previousPage.setNext("login.jsp");
                    response.sendRedirect(previousPage.getNext());
                    outputStream.close();
                }
            } 
            else{
                response.sendRedirect(previousPage.getNext());
                outputStream.close();
            }
        }
        finally {            
            out.close();
            outputStream.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
